P2P sharing services should not be enabled on laptops that are using untrusted networks. Content types supported by Content Caching in macOS Rationale: The main use case for Mac computers is as mobile user endpoints. Unless there is a business requirement to manage operational Internet connectivity and bandwidth user endpoints should not store content and act as a cluster to provision data. This capability requires the use of mac OS clients as P2P nodes for updated Apple content. In heterogeneous enterprise networks with multiple subnets, the effectiveness of this capability would be determined by how many Macs were on each subnet at the time new, large updates were made available upstream. This capability can be very valuable for organizations that have throttled and possibly metered Internet connections.

Information Starting with 10.13 (macOS High Sierra), Apple introduced a service to make it easier to deploy data from Apple, including software updates, where there are bandwidth constraints to the Internet and fewer constraints or greater bandwidth exist on the local subnet.

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